Threshold



A. J. DUBEE.

THRESHOLD.

APPLICATION FILED JUNE 61 1919.

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THRESHOLD.

APPLICATION FILED JUNE 6. 1919.

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easier ADELARI) J. DUBEE, OF GLENS FALLS, NEW YORK.

THRESHOLD.

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, Specification of Letters Patent 7 Application: filed. June 6',1919;* Serial No. 302,286:

To all whom it may concern:

Be it known that I, Annnnno J. DUBEE, a citizen of the United States, residing at Glens Falls, in the county of Warren and State of New York, have invented certain new and useful Improvements in Thresholds, of which the following is a specification.

This invention relates to thresholds, and more especially to the specific means for supporting the same in a door opening and within the line of the flooring, above which the threshold usually projects slightly. Ordinarily, the flooring is laid on a base which may continue through the door opening or be there interrupted by a sill. self may be of tile, cement, or other material which requires a base to support it; or the floor may be of tongue and groove lumber,

usually hard wood laid on a sub-floor which constitutes the base.

lhe broad purpose of the present invention is to provide means along and beneath both edges of the threshold for connecting it with the edges of the flooring, whatever the character of the latter, and particularly for fastening said edges down onto the base and clamping the flooring thereto.

Specifically, the invention consists in a plate under each edge of the threshold having a row of holes spaced from its margins at different distances, a strip underlying the plate and also having a row of holes, and "fastening devices connecting the strip with the threshold and passingthrough the holes in tl e plate, the latter being placed with one face upward and its margin projecting beyond the threshold or with the other face upward and its margin inset, according to which edge of the flooring stands ad acent.

The invention also contemplates the con' tinuation of the fastening devices down into the base, and in some cases the provislonoi anchors which may beembedded 1n the plastic floor as the same is laid. Details are set forth in the following specification and,

claims and reference is. made to the drawings wherein:

Figure 1 is a transverse section through a threshold connected with the tongue and the groove edges of a wooden flooring by my F ig. 4: is a section much like Fig. 2, showing a plastic flooring at the left, a tile flooring set on a bed at the right,=and a facingoverlying the threshold proper.

Fig. 5 is a section showing a-continuous base as in Fig. 4, the grooved edge of the wood flooring at the left-and a stone facing set on a sill at'the right, the right edge of the threshold being supported by a single and somewhat thicker strip and the entire threshold being elevated slightly so that the racing is unnecessary.

Fig. 6 is a sectional detail showing how a sleeve of lead or the like ma-y be-employedfor connecting the elements.

In the drawings herewith the-letter Patented Aug-3,1920.

designates the base which maybe'thetimbers, sub-floor, sill, or any element or elements directly supporting the floor, the latter is lettered P in Figs. 2 and 4 for plastic flooring, F in Figs. 1 and 5 for wooden flooring whereof T designates the tongue edge and G the grooved edge. My invention is intended to apply a threshold to'conditions as thus typified.

The element numbered 1 in the several views is the threshold proper, and whileit may be of any material I prefer it to be of metalspecifically iron. It is usually about a quarter of an inch thick and with its.

and 6E, and it is provided near its edgeswith countersunk holes through which arepassed fastening screws 3 attaching it to the threshold in such manner that it overlies and covers the same completely and projects out onto the flooringat both sides. This plate may be used or not, to suit the architect or builder, and it may be arched asshown,

solid, or otherwise, its face plain or ribbed or otherwise roughened, and its general finish appropriate to the surroundings and requirements. Along both edges of the threshold 1 and at a given'distance, say

' half aninch from its margins, I provide rows of holes 4 which arespaced atregular intervals, say six inches. These holes are for the fastenlng devices which are shown a as screws 5 passing downward and having auger points 6 taking into the sub-floor or holes be carried across the end of the threshold, that also might be done.

Overlying the base B beneath each edge of the threshold is a strip of wood or metal 10 pierced with a row of holes 14 at the same intervals as those in the threshold, the row standing also the same distance from the margin 11, which margin is therefore flush with the margin 12 of the threshold in the finished structure. If screws 5 are employed passing downward as in Fig. 1, the base may be recessed as at 16 beneath each hole of the strip 10, and a nut 17 will be placed in the recess 16 to receive the threads 7 of the screw while the point 6 thereof takes into the base. If the screw 8 extends upward through the strip as shown in Fig. 2, the nut will be omitted. The strip 10 is of a length coincident with that of the threshold, it is perhaps three quarters of an inch wide, and it is by preference of a thickness equal to the shoulder beneath the tongue T of the floor board F.

Next above each strip 10 is a wide strip or plate 20 extending also longitudinally beneath the edge of the threshold, and this plate 20 is provided with a row of holes 24, spaced at the same intervals as referred to above. The holes are nearer to the margin 25 than to the margin 26, as perhaps best shown in Fig. 3; and this difference in the disposition of the holes is purposely adopted so that the strip 10 may be secured in place by the fastening means as seen either at the right of Figs. 1 and 4, or at the left. At the right and with the plate 20 one side up, when the screws pass through the holes, the margin 25 of the plate is inset from the margin 12 of the threshold just a sufficient distance to admit the tongue T. At the left and with the plate 20 reversed, when the screws pass through the holes, the margin26 of the plate 20 projects beyond the corresponding margins of the threshold and strip 10 just a sufiicient extent to fill the groove G. Therefore, according as this plate 20 is applied in one position or the other and secured by fastening devices, it fits the edge of flooring having a tongue T or the mating edge of flooring having a groove G. When now these screws are set up tight, the nuts clamp the strips 10 to the onto the base. In order that there shall be a close fit of parts, the plates 20 are preferably coincident in length with the threshold, about a quarter inch wider than their respective strips 10, and of the same thickness as the tongue T.

The use of the invention as illustrated in Fig. 2 employs the same strips 10 and plates 20, and the edges of the plates 20 may both be inset or both allowed to project, or they may be arranged as shown. Anchor wires 30' may well be employed, their inner ends engaged in holes 31 formed in the plates 20 as shown, or perhaps engaged with holes 32 with which the strips 10 may be provided, and their bodies allowed to project laterally beyond both. margins of the threshold so that when the plastic P is poured upon the base B and allowed to set, the threshold supports are well anchored as will be clear.

The use of the invention as illustrated in Fig. employs the same strips 10 and plates 20, and the plate 20 at the left may be inset or maybe allowed to project as shown and will preferably have anchors 30 embedded in the plastic floor P. At the right the anchor is shown engaging a bed 33 upon which is laid a floor of tiles or mosaic indicated at M.

The invention is illustrated in, Fig. 5 as interposed between the grooved element G of a wood flooring and the stone S often found on the door sill at the front door, and use has also been made of this view to show how the threshold may be raised a little and the facing omitted. This is accomplished at the inner edge by threading washers 3 1 on the screws 5 above the plate 20. At the outer edge the threshold is supported by one or more strips 36 whose total thickness is a little greater than the aggregrate thickness of the strip 10 and plate 20. Thescrew 5 may here connect the threshold directly with the base B, and another screw 87 may pass down through the threshold and strip 36 as shown. The sill 38 may be entirely of stone or may have a stone facing 39, and it hardly needs further illustration to show that the sill and strip at the right of Fig. 5 might be of one piece.

Fig. 6 is illustrative merely of another form of fastening for connecting the several elements. I have spoken above of screws 5, and of their use at this point, but obviously other fastening means such as the lead sleeve 40 shown in Fig. 6 might be employed, either alone or in conjunction with a screw, bolt, or rivet. With respect to this and other details, the widest latitude is re" served.

Having thus described the invention, what is claimed as new is:

1. A threshold, a plate below the same provided with a row of holes at dilferent distances from its margms, and screws engaging the threshold and the holes for attaching the plate to the threshold so that it shall project beyond or stand inset from the margin of the threshold, as desired.

2. A threshold, a plate below it, a strip below the plate and having its margin flush with that of the threshold, and means for clamping said elements together with the plate projecting beyond the others to produce a tongue or inset from their margins to produce a groove, as desired.

3. A threshold, a plate below it provided with holes at different distances from its margins, a strip below the plate, and fastening devices connecting the threshold and strip and passing through the holes in the plate to cause its edge to stand projected aeyond or inset from the margin of the threshold, according to the position of the plate selected.

4. The combination with a threshold having holes at regular intervals in a row spaced at a given distance from its margin, and a strip beneath the edge of the threshold and having a row of holes at like intervals; of fastening devices passing through alined holes, and a plate interposed between the threshold and strip and having holes at like intervals in a row spaced at different distances from its margins and engaged by said fastening devices in selected positions of the plate, for the purpose set forth.

5. The combination with a threshold having holes in a row spaced at a given distance from its margin, and a strip beneath the edge of the threshold and having a like row of holes; of fastening devices passing through alined holes, and a plate interposed between the strip and the threshold and having holes in a row spaced at a less distance from one margin and at a greater distance from the other margin of the plate than the given distance mentioned, for the purpose set forth.

6. The combination with a threshold hav ing holes at regular intervals in a row spaced at a given distance from its margin, and a strip beneath the edge of the threshold marginally flush therewith and having a like row of holes; of fastening devices passing through alined holes, and a plate wider than the strip, adapted for insertion in selective positions between it and the edge of the threshold, and having holes for said fastening devices arranged at the same intervals in a row spaced from one margin of the plate at a less distance than the given distance mentioned and from the other margin at a greater distance, for the purpose set forth.

7 The combination with a base for supporting a tongue-and-groove floor whose boards are spaced at a door opening; of a threshold adapted to fill said space above the tongue of one board and the groove of the other, strips upon said base beneath the edges of the threshold, plates between the strips and threshold, one plate projecting beyond one margin of the threshold and adapted to fit a groove and the other plate inset from the other margin of the threshold and adapted to admit a tongue, and fastening devices along each edge of the threshold connecting it with the plate and strip. 7

8. The combination with a base for supporting a tongue-and-groove floor whose boards are spaced at a door opening; of a threshold adapted to fill said space above the tongue of one board and the groove of the other, strips upon said base beneath the edges of the threshold and marginally flush with the latter, plates between the strips and threshold and respectively projecting beyond and inset from said margins, and fastening screws passing down through each edge of the threshold and the subjacent plate and strip and into the base.

9. The combination with a base for supporting a tongue-and-groove floor whose boards are spaced at a door opening; of a threshold within said space above the tongue of one board and the groove of the other, strips upon said base beneath the edges of the threshold and marginally flush with the latter, plates between the strips and threshold and whereof one projects beyond and the other is inset from said margins to mate with the groove and tongue of opposite floor boards, the strips and plates and the edges of the threshold having rows of alined holes and the base having recesses below the holes, nuts in said recesses, and screws passing downward through the holes and engaging the nuts.

10. The combination with a base for supporting floors whose edges are spaced at a door opening; of a threshold within said space, strips upon said base beneath the edges of the threshold and marginally alined with the latter, plates between the strips and threshold and whereof one projects beyond and the other is inset from said margins, the strips and plates and the edges of the threshold having rows of alined holes and the base having recesses beneath the holes, nuts in said recesses, and screws passing downlgvard through the holes and nuts and into the ase.

In testimony whereof I afiix my signature.

ADELARD J. DUBEE. L. 8.] 

